Home / 27,015.12-37,272.69-21,350.79

Finding the Fourth Proportional to 27,015.12, 37,272.69 and 21,350.79

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Solution

The fourth proportional to 27,015.12, 37,272.69 and 21,350.79 is: 29,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.12 : 37,272.69 = 21,350.79 : x
  2. Step 2: Convert to fraction form
    27,015.12/37,272.69 = 21,350.79/x
  3. Step 3: Cross multiply
    27,015.12x = 37,272.69 × 21,350.79
  4. Step 4: Simplify right side
    27,015.12x = 795,801,376.93
  5. Step 5: Solve for x
    x = 795,801,376.93/27,015.12
  6. Step 6: Final answer
    x = 29,457.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.